canning



(No Model.)

W. P. CANNING.

TRAVELING FLAT GARDING ENGINE.

Patented May 26, 1891.

/VVE/V TUR bolts by which the ends of the flexible bends 'UNITED STATESI PATENT @rrrcn.

XVILLIAM P. CANNING, OF LOIVELL, MASSACHUSETTS, ASSIGNOR TO THE LOlVELLMACHINE SHOP, OF SAME PLACE.

TRAVELING-FLAT CARDlNG-ENGINE.

SPECIFICATION forming part of Letters Patent No. 453,060, dated May 26,1891. Application filed July 31, 1890. $eria1 No. 360,585. (No model.)

To a whom it may concern:

Be it known that I, WILLIAM P. CANNING, a citizen of the United States,residing at Lowell, in the county of Middlesex and State ofMassachusetts, have invented a new and useful Improvement in'Iraveling-I lat Carding-Engines, of which the following is aspecification.

In certain machines of the class known as traveling-flatcarding-enginesbrackets are used at both ends of the chain of flats andon both sides of the machine to support the wheels or rollers whichcarry the chain of flats, and about which wheels or rollers that chainreverses the direction of its motion, these brackets also supporting thestuds or studon which the end portions of the flats travel are connectedto the brackets. It is customary to enable the position of the ends ofthe flexible bends to be changed relatively to the periphery of the maincylinder by providing means for enabling the brackets to be moved towardand from the axis of the main cylinder. In effecting this adjustment ofthe brackets, however, the wheels or rollers aforesaid move in and outto the same extent as the ends of the flexible bends, as will beunderstood from the fact that the wheels or rollers are carried by thesaid brackets, and consequently there is no change in the distancebetween the upper surface of the flexible bend and the nearest point ofthe circumference of the neighboring wheel or roller. Sometimes it isnecessary to be able to make the change in this distance apart from orin addition to the changein the position of the bracket, and so far as Iam aware this has been done heretofore only by making an alteration ofthe shape of one or more parts, as by filing out the upper orlowersurface of the hole in the bracket through which the stud or studboltpasses and then moving the stud or stud-bolt in that hole.

The objects of my invention are to make it practicable to vary thisdistance without altering the shape of any of the parts and with easeand convenience, and to make it certain that after this distance hasonce been altered it will not be changed by the jar of the machinery orby the force applied to the stud or stud-bolt through the flexible bendor through the bracket, as it is liable to be in the case where the holehas been enlarged by filingin the manner noted. To this end I make theposition of the end of the flexible bend adjustable with respect to thebracket aforesaid and to the wheel or roller carried thereby through thecombination, with the said flexible bend and the said bracket, of a studor stud-bolt which engages with the end of the flexible bend. and withthe bracket, sub stantially as heretofore, but which stud or stud-boltis formed or provided with an eccentric portion, whereby when the saidstud or stud-bolt is turned upon its axis a part of it moves into a newposition with respect tothe bracket and carries the flexible bend withit.

My invention admits of being embodied in a variety of forms differingfrom one another in certain respects, but all embodying the gist of myinvention, which is a stud or stud bolt engaging with the end of theflexible bend and with the bracket which carries the wheel or rolleraround which passes the chain of flats, and about which wheel or rollerthat chain reverses the direction of its motion,the said stud or stud-bolt being provided or formed with an eccentric portion, and therebyadapted, when it is turned upon its axis, to

provide for a part of it being moved into a new position with respect tothe bracket, and thereby to effect an adjustment of the position of theend of the flexible bend with relation to the nearest point of thecircumference of the neighboring chain-supporting wheel or rollercarried by the bracket.

In the accompanying drawings, Figure 1 is a view in side elevation ofportions of certain parts of a traveling-flat carding-engine and showsone embodiment of myinvent-ion. Fig. 2 is a view of the same partsinvertical transverse section, the stud or stud-bolt and its binding-nutbeing shown in elevation. Figs. 3, at, and 5 are views showing one formof stud or stud-bolt employed by me. 8 are views showing the form ofstud-bolt ordinarily employed. Figs. 9, 10, and 11 are viewsrepresenting a slightly-modified stud or stud-bolt which Imay adopt.Figs. 12 and 13 are views illustrative of a modification of myinvention, Fig. 12 being a view in side Figs. 6, 7, and

elevation and Fig. 18 being a view partly in vertical transversesection. Figs. Illand 15 are views showing separately the form of studor stud-bolt shown applied in Figs. 12 and 18.

In the drawings, reference being had in particular to Figs. 1 and 2thereof, 1!. is one of the Wheels or rollers which, as hereinbeforeindicated, are placed on both sides of the machine and at both ends ofthe chain of flats and serve to carry the chain of flats, and aboutwhich wheels or rollers that chain reverses the direction of its motion.

1) is one of the flexible bends, only one end thereof being shown, andZ) is the bracket supporting the wheel or roller 20 shown.

In practice the stud or stud-bolt which is passed through openings inthe bracket and the adjacent end of the flexible bend usually is formed,as represented in Figs. 6, 7 and 8, with two cylindrical parts Z) and Z1and a cylindrical shoulder I), all having their axes in the samestraight line, the part Z) entering an opening in the flexible bend band the art 6 an opening in the bracket 1), while the shoulder Z9 comesbetween the flexible bend and bracket. The end of part 19 of the stud isthreaded, as shown, so that by placing a binding-nut If on the saidthreaded end and turning it up against the side of the bracket bopposite to that side thereof against which the shoulder 6 comes thestud-bolt is secured to the bracket. The exterior surface of shoulder l)is intended to be engaged by a suitable toolas, for instance,gastongsand be held thereby from rotation as the nut I9 is turned up.

For the purposehereinbefore Stated nam ely, that of varying the distancebetween the surface of the flexible bend and the nearest point on theperiphery of the adjacent wheel or r0ller--I form one of the parts ofthe studbolt which engage the openings in the bracket and flexible bendso that its axis shall occupy an eccentric position with relation to theaxis of the other, and so that when the stud-bolt is turned upon itsaxis a part of it moves into a new position with respect to the bracketand carries the flexible bend with it. In Figs. 1, 2, 3, at, and 5 theportion 1) of the stud-bolt which enters the opening in the end of theflexible bend is disposed eccentrically with reference to the axis ofthe shoulder Z7 and of the portion 19 which passes through the openingin the bracket. The portion 1) of the stud-bolt has a screw-thread ed ond for the reception of the binding-n ut Z1, and the studbolt thereby isadapted for being held to the bracket, the latter occupying a positionbetween the shoulder Z2 and the nut. In this case the adjustment of theposition of the end of the flexible bend is effected by turning thestud-bolt within the opening therefor formed in the bracket. Customarilya slot is formed either in the end of the flexible bend or in thebracket b to permit of endwise movement of the end of the flexible bendin the direction of the length of the flexible bend. In Figs. 1 and 2,wherein the studbolt is bound to the bracket by a binding-nut b, theslot is shown formed in the end of the flexible bend. In Fig. 12,wherein the stud-bolt is bound to the end of the flexible bend, the slotis shown formed in the bracket. In the former case the slotted end ofthe bend slides over the inner end of the stud-bolt. In the latter casethe stud-bolt slides in the slot in the bracket.

In Figs. 1, 2, 3, 4, and 5 I have shown the shoulder b as madepolygonal, in order to provide for the convenient application of a toolto hold the stud-bolt from turning while the binding-nut h is beingturned up in its place, or to partially rotate the stud-bolt, and thuschange the position of the eccentric portion Z) around the axis of theother portion of the stud-bolt, for the purpose of effecting anadjustment of the end of the flexible bend. Instead of forming theshoulder Z9 polygonal, I may make it cylindrical, as in Figs. 9, 10, and11, and provide it with holes I) for the reception of the end of a toolby which the stud-bolt is to be held from rotation or is to be rotated,as desired.

In Figs. 1 and 2 the stud-bolt is clamped to the bracket and its freeend enters the opening in the end of the flexible bend. In Figs. 12 and13 the stud-bolt is clamped to the flexible bend and its free end entersthe opening in the bracket. As shown in these figures and also in Figs.lat and 15, the shoulder 1) is formed at one end of the stud-bolt, andthe portion b with the axis of which the shoulder is concentric, isthreaded for the receptionof a nut. In Fig. 13 the portion Z2 is shownpassed through the opening in the flexible bend, and the shoulder Z7 isshown seated against one side of the said bend, the said shoulder beingbypreference received in a recess formed in the side of the bend. Thebinding-nut I) is applied to the threaded end of portion 11 and turnedup against the opposite side of the bend. The portion b enters theopening in the bracket, and, if desired, may be threaded, as shown, andfitted with a nut 6 and washer b" on the side of the bracket opposite tothat on which the flexible bend is situated. In this construction, as ameans of holding the studbolt from rotation while the nut 19 is beingturned up, or of rotating the stud-bolt for the purpose of effecting anadjustment, I have shown a slot in the end of the stud-bolt for thereception of the end of a screw-driver. The nut I) should be loosenedbefore the stud-bolt is turned, and tightened afterward. IVhen thestud-bolt is thus turned, the distance from the upper surface of theflexible bend to the nearest point of the circumference of theneighboring guide wheel or roller will be changed and the object forwhich the eccentric stud bolt is provided will be accomplished. Theshoulder I9 preferably, is formed integral with the stud-bolt.

I claim as my invention-- IIS The combination, with a roller-supportingble bend to the nearest point of the eircu1n bracket and a flexiblebend, of a stud-bolt ference of the roller, and a binding-nut, sub- [0provided with a shoulder and with portions stantially as described. toenter the bracket and bend, respectively,

5 one of the said portions being disposed ec- WM. P. OANNING.

eentrically and serving when the stud 0r stud- Witnesses: bolt isrotated as a means of changing the FRED WOODIES,

distance from the upper surface of the fl6Xi- GHANNING WHITAKER.

